Zip 60543 (Oswego, IL) Climate

Oswego, IL is located in the Midwest region of the United States and has a humid continental climate. It experiences four distinct seasons with hot summers that last from late May to early September. During this time, Oswego often experiences high temperatures and humidity levels as well as occasional severe thunderstorms. Winters are generally cold and snowy, with average temperatures ranging from 15 to 25 degrees Fahrenheit. Springtime brings pleasant conditions with temperatures gradually rising throughout April and May. Fall is also enjoyable with mild temperatures in the 50s and 60s Fahrenheit throughout September and October.

Oswego (zip 60543), Illinois gets 39 inches of rain, on average, per year. The US average is 38 inches of rain per year.

Oswego (zip 60543) averages 30 inches of snow per year. The US average is 28 inches of snow per year.

On average, there are 189 sunny days per year in Oswego (zip 60543). The US average is 205 sunny days.

Oswego (zip 60543) gets some kind of precipitation, on average, 123 days per year. Precipitation is rain, snow, sleet, or hail that falls to the ground. In order for precipitation to be counted you have to get at least .01 inches on the ground to measure.

Weather Highlights

Summer High: the July high is around 84 degrees
Winter Low: the January low is 15
Rain: averages 39 inches of rain a year
Snow: averages 30 inches of snow a year

Bestplaces Comfort Index

The annual BestPlaces Comfort Index for the 60543 zip code is 6.8 (10=best), which means it is less comfortable than most places in Illinois.

8.8 Summer - 4.4 Winter

June, September and August are the most pleasant months in the 60543 zip code, while January and December are the least comfortable months.

Climate	Oswego, Illinois	United States
	Unlock	38.1 in.
	29.6 in.	Unlock
	Unlock	106.2 days
	189 days	Unlock
	83.8°	85.8°
	Unlock	21.7°
	6.8	Unlock
	Unlock	4.3
	640 ft.	Unlock

Climate

YOU SHOULD KNOW

Many people confuse weather and climate but they are different. Weather is the conditions of the atmosphere over a short period of time, and climate is how the atmosphere is over long periods of time.

Weather is how the atmosphere is behaving and its effects upon life and human activities. Weather can change from minute-to-minute. Most people think of weather in terms of temperature, humidity, precipitation, cloudiness, brightness, visibility, wind, and atmospheric pressure.

Climate is the description of the long-term pattern of weather in a place. Climate can mean the average weather for a particular region and time period taken over 30 years. Climate is the average of weather over time.

July is the hottest month for the 60543 zip code with an average high temperature of 83.8°, which ranks it as cooler than most places in Illinois. In the 60543 zip code, there are 5 comfortable months with high temperatures in the range of 70-85°. The most pleasant months of the year for the 60543 zip code are June, September and August.

In the 60543 zip code, there are 10.7 days annually when the high temperature is over 90°, which is cooler than most places in Illinois.

January has the coldest nighttime temperatures for the 60543 zip code with an average of 14.8°. This is colder than most places in Illinois.

In the 60543 zip code, there are 128.9 days annually when the nighttime low temperature falls below freezing, which is colder than most places in Illinois.

In the 60543 zip code, there are 9.4 days annually when the nighttime low temperature falls below zero°, which is colder than most places in Illinois.

The humidity is usually comfortable in the 60543 zip code but some summer months can be sticky or muggy. July is the most humid month, though humidity is low for most of the year. The most humid months are July, August and June.

July is the wettest month in the 60543 zip code with 4.4 inches of rain, and the driest month is January with 1.7 inches. The wettest season is Autumn with 33% of yearly precipitation and 15% occurs in Spring, which is the driest season. The annual rainfall of 38.8 inches in the 60543 zip code means that it is about average compared to other places in Illinois.

May is the rainiest month in the 60543 zip code with 12.5 days of rain, and September is the driest month with only 7.9 rainy days. There are 122.8 rainy days annually in the 60543 zip code, which is one of the rainiest places in Illinois. The rainiest season is Summer when it rains 29% of the time and the driest is Winter with only a 22% chance of a rainy day.

An annual snowfall of 29.6 inches in the 60543 zip code means that it is snowier than most places in Illinois. December is the snowiest month in the 60543 zip code with 9.3 inches of snow, and 6 months of the year have significant snowfall.

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